83
-
5
15
-
0
00
Rev.
B
26
WARNING
OUTPUT TERMINALGROUNDING
There is a potential shock hazard at the RS232/RS485 and the IEEE
ports when
using power supplies with rated or combined voltage greater than 400V with the
Positive Output of the power supplies grounded. Do not connect the Positive ou
t-
put to ground when using the RS232/RS485 or IEEE under the above conditions.
3.10 LOCAL AND REMOTE SENSING
The rear panel J2 sense connector is u
sed to configure the power supply for local or remote sensing
of the Output Voltage. Refer to Fig.3
-
15 for sense conne
c
tor location
3.10.1
3.10.1 Sense wiring
3.10.2 Local sensing
The power supply is shipped with the rear panel J2 sense connector wired fo
r local sensing of the
Output Voltage. See Table 3
-
4 for J2 terminals assignment. With local sensing, the Output Voltage
regul
a
tion is made at the output terminals. This method does not compensate for voltage drop on the
load wires, therefore it is recomme
nded only for low load current applications or where the load reg
u-
lation is less critical.
Terminal
Function
J2
-
1
Remote positive sense (+S)
J2
-
2
Local positive sense. Connected internally to the positiveoutput ter minal(+ LS).
J2
-
3
Not connected (NC
)
J2
-
4
Local negative sense. Connected internally to the negative output terminal (
-
LS).
J2
-
5
Remote negative sense (
-
S).
Table 3
-
4: J2 terminals
WARNING
There is a potential shock hazard at the sense connector when using a power
supply with a rated Output Voltage greater than 40V. Local sense and remote
sense wires s
hould have a minimum insulation rating equivalent or greater than
the maximum Output Voltage of the power supply. Ensure that the connections at
the load end are shielded to prevent accidental contact with hazardousvoltages.
Fig.3-15: Sense connector location
J2
OFF
ON
SW1